Lifting-jack.



@ W. SHAW & D. BOTTOM. LIPTNG JACK. APPLICATION FILED NOV. 1, 1912.

1 127 294., Patented Feb. 2, ,1915. mums-sum1.,

I P. W. SHAW e D. BOTTOM". Y LIPTING JACK.

APPLICATION FILED NGV. 1, 912.

Patented Feb. 2, 1915.

2 SHEETS-SHEET 2.

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Til-NTE STAS an Y LIFTING-JACIL Application and november 1, zeit.

To all whom t may concern.'

Be it known that We, FAYETTE YV. SHAW and DICK BOTTORF, citizens of the "Unitedl States, residingl at Lakewood, Cleveland, in

the county of Cuyahoga and State ol: Ohio,-

have invented certain new and useful linprovements in Lifting-Jacks, vof which the following is a specification. i

This invention relates to an in'iprovez. in lifting jacks.

This invention has for its object previde novel means for supporting the oper ating mechanism of jacks of the e bodying a lifting,` screw and stand, Such liftingserew may be elevated n" 1on1 ered by an intermittent action, the "v ings for the operating mechan such as to admit of the parts beinl assembled or taken apart, with th that replacements may eiiected i; greatest facility and the parts renner cessible for any purpose.

The invention consists e'f the noire" i turcs, details of construction and certions of parts which hereinafter more particularly set forth, illust claimed. i

In the drawings: Figure' 1 is a perspective view ot the jack; Fig. 2 is a vertical tion, the screw and its supporting sleeve ing in lowered position; Fig. 3 is an elevation partly in section, the screw and its supporting sleeve being raised; Fig. 4 is a section on the line 4-4 of Fig. 3; Fie. 5 is a perspective view of the sleeve and the bracket which is formed integral With the same to support the handle by means of which the jack-screw is raised; Fig. 6 a section on the line (5 6 of Fig. 2. Fig. 7 is -a detail view ol theterrninal of the tubular member 42.

In thedrawings 10 designates the base which supports the hollow standard 11. This standard is cylindrical and receives the sleeve 12, the standard being formed with slots 1l receiving the ribs 12 of the sleeve 12. Thus a plurality of nesting ribs are provided'whieh prevent the sleeve from turning. The sleeve is formed with a plurality of apertures 13, being maintained in adjusted position with respect to the standard by cans of dogs 14 pivotally supported between the apertured lugs 15 which are 'formed integral with the casing at the points where it is increased in thickness. These dogs are maintained with their1 eX- Specieatien of Letters Patent.

Seria llfe,

tensions 1f" projecting within the standard by .means oi sprint 1S which are interposed between their ,n portions 19 and the standard. 'The sleeve y upper end with upper a i which rests upon 'ne standard, when ion within :ed on the sei l nut bei e :iut by means termed with ch are spaced of@ 3G and the ng ln'e'vided is bolted the p the handle supporting member shown in detail in Fig. This handle supportin' meint er consists or" the sleeve 3.55 which is secured te or formed integral with. the bracket 32, a handle being;A inserted within the sleeve to engage the terminals ot' a. pin Se? which passes through the shaft 35 'which is rotatably supported by the off-set 3G ot the bracket This shaft supports at its terminal remote from the pin a dog 37. r'lhis dog` is formed with the tooth engag-ing portions and it? which when the handle is reciprocated impart nicvenient'to the nut through the -niediihn ot the teeth 2S.

ln adjusting the jael' the same is placed beneath the vehicle and the screw and sleeve .lifted as an entirety until the member 11, which is arranged en the end portion of the jack-screw, contacts with the portion of the vehicle which it is desired to lift. The dogs 14 are then allowed to enter the apertures in the sleeve locking the same against receding within the standard, this lNith the jack in position, the handle 42 is inserted within the sleeve 33, said handle being provided with the tubular portion 42 which receives the end portion of the shaft 35, the tubular poris provided at its l Il (l v nninu tzuzhired :int

tion being provided with, slots which receive the terminals o'l' the pin lhe hlindle is then rotated until the dog eontncts with the teeth, 'it being noted that the dog ie rotated in :t direction to the lett when it denired to reise the screw, so that the seine will Contact with the 'teeth to toed. the nut to the right. Alfter the dog lnis been brought to this; posi tion the handle reciprontitud to leed the Soren' npwlird to .mib he '\'eliiele, it being noted that the nnt is el'leetuelly held :igeinst vertical movement -with the ,ee-row by the nei-mrs fl which posse through the opt. tured luge 23, smid screws contacting; with the thing@ oit the sleeve The inen'y advantages ot a eonetrnetion ot this character will he el'lznfly appuient, :is it will be noted that the mino nitty be readily brought to :t posi tion where the 'feehs f 'en' muy engage the por on or the v iole nfhieh it doeii-ed to litt, it being nn.neeteeary to 'toed the inch-Heren: the entire length of the Staind-(1rd in missing :und lowering the Sonie, the ilfeedlng ol lie jee i-eerew only oeenrring during; the :ietnril lifting,` of the Vvel'iiole. llt will oleo he .noted that the ronstrnetion such :ns moy be easily und eeononiiGully l thnt the 'furious1 parte muy be r iodily assembled.

Ait will he noted. that thelmntlle infnnher nhirh is reeeir (l by the tubular ,)ortion lit' ot the brueliet 32 i; reinciiroble. lllnrs the nel( muy' he Couvenientljyr pleeed Within the tool box et n, lmotor vehicle, attention being culled to the 'hiet that the lmiuil'l eirnporting ,fe-leere nerr be rotated with respect to the r: iirdnrd in order that the juelt may ,lie that in the tool holt. The udmntftges ot this-5 eonstruction `will be noted, :if-l the gn lt when not in use `will oeenpy hut .little eprice, beijing' readily placed Within e narrow tool lrecepteele.

lloving described our invention, ehriined is:

ln :t lifting jack of the ehereeter Specified, the eoinbinsrtion ot it hollow member having :in outer flange at its upper end, :in internally' thrizrded lnen'iber mounted upon the hollow nielnber :intl having :1n mitwnrrlly exf tending' linee to extend over the hollow ineinher :ind formed with u` depending portion embracing the sides ot the Menge thereof, li/ienne fitted to the dependingl portion ot the interl'iully thrfsulelfl ruoinber :ind ongegingg; over the llnnge ot the hollow nieniber, :in externally threaded .member dielioeeed, rri hin the hollow nieniher :1nd honing serewthrefidefjl. eiigztgenient `with the intermxlly threznled nieinber, 'ineens for preventing reletire rotation of the externally serewthriuded member und hollow member, at plete niionnted upon the olrtwerdly extending; n: rt ot the internally thrtwnled member und free to lnrn thereoi'i, retnii'rhig menus se ein-ed to the internnflly threuded. member und extendingover the plete to prevent ver tieni dif-sphaeenient tlioreol, und :ietuzlting ineens mounted upon the ,earid plete :1nd ee (migrating, with the ret-,lining menne by :in intermittent n'iotioli to elteet roter-y morenient olE the internallyr tln'emlfid ineinlnr, end :i longitudinal nnwenieut oiI the exten null)v thresuled member.

ln testimony 'nhereolf we :llix our lures: in prescritte et two witnes what is ll (l 

